During November 2025, Loh Jun Jie refactored the dotnet/runtime repository to improve maintainability and type safety in C# backend code. He consolidated several specialized inline object types into a single generic InlineArrayX<T> pattern, replacing redundant definitions like ThreeObjects, TwoObjects, and EightObjects. This architectural change reduced the API surface and simplified type management, making the codebase easier to maintain and extend. By aligning the new implementation with existing generics utilities, Loh Jun Jie enabled more consistent and future-proof runtime development. His work focused on software architecture and backend development, emphasizing maintainability and reducing complexity without introducing new bugs.